蛋白质学的开端是蛋白质的提纯.The start of proteomics is purification.蒸馏法已传统地成了水提纯的主要方法.Distillation has traditionally been the major system for water purification.这些金属可以用所谓“逐区提纯法”来提纯.These metals may be purified by a technique called ...
They skip rope and play catch, waiting for the bell.他们又是跳绳，又是玩接球，等着上课铃声响起。It is important not to skip meals.每顿饭都要吃，这一点非常重要。You may skip through a book, reading only those passages concerned.你可以跳读一本书, 只拣那些有关的段落读一下即可....
They could not afford to spoil those maps by careless colouring.若是上色的时候不小心弄坏了那些地图，他们可承担不起。They pay full rates. Mind you, they can afford it.他们付全价，请注意，他们是付得起的。It would be nice to be able to afford to retire earlier.无后顾之忧而...
Objective To investigate the nursing policies of the intensive care unit ( ICU ) patients in the emergency department.目的探讨急诊及重症监护病房 ( ICU ) 监护患者的护理管理.Nursing shouldn't be over - operational, but It'should be ex...